<!DOCTYPE html>
<html contenteditable="true">
<head>
<script>

function boom()
{
  document.execCommand("inserthtml", false, "b");
  var myrange = document.createRange();
  myrange.selectNodeContents(document.getElementsByTagName("img")[0]);
  window.getSelection().addRange(myrange);
  document.execCommand("strikethrough", false, null);
}

</script>
</head>
<body onload="boom();"><img></body>
</html>
